Bolt-on for custom radial mount calipers. When you do more than just gently cruise-along the imperfections of the OEM fork may arise quicker than you think. When strength and improved stability in a non-flexing design is what you''re looking for; Ness made it. These Method style lower fork sliders are machined from billet aluminum and come complete with an integrated non-slip fork brace. Compatible with OEM or components for OEM style forks. Allows installation of stock and Arlen Ness Fat fenders for 18" wheels. Note: Not compatible with 21" wheels. Note: For optional Ness 6-piston radial calipers see 710179 chrome; 710178 black; 710183 gold (left side) and 710181 chrome; 710180 black or 710186 gold (right side)